I second although with a slight modification. I would like to see the delta compare to what is presently equipped.

The equip item will obviously always be a delta of 0 and it should not be displayed but any other pawn tooltip would display the current value and the delta between (). If possible, the delta should be red when negative and green when positive to help find out if the item has a better value for the scale.

Yep, definitely going to do something like this... soon™. I'll probably end up with various options for what you want to compare to: your best item(s) of that type, what you have currently equipped, or perhaps other possibilities.